Apparatus for unloading hay and other material.



o0. y a m W m, m 1 e M. 5., m e m Z. L. M 71 ya A t f m n e B Lb T a m P. w m2,. 071/* 07. f .D2 DNV. 7 M AAM fur/. m mm1 ,if fn., H u; 4 GL w DNH ....D..N n LAN n m .LMT HNm m UM m RD.. M 0D.. w PA m S U T An un A D.. P A

@wmwww 7% NTTED STATES PATENT FFTCE.

HENRY L. DUXSTAD, OF CAMBRIDGE, WISCONSIN.

APPARATUS FOR UNLOADING HAY AND OTHER MATERIAL.

Application filed July 27, 1912.

To @ZZ whom t may concern:

Be it known that T, HENRY L. DUXSTAD, a citizen of the United States, residing .at Cambridge, in the county of Dane and State of Wisconsiin have invented a new and useful Apparatus for Unloading Hay and other Material; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a new and useful apparatus for unloading hay and the like.

As one of the objects of the invention it is the aim to provide a simple, inexpensive and etlicient apparatus, designed especially for unloading hay and the like in barns, or other housings.

The invention comprises furthe-r features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings Figure 1 is a view showing the application of the hay unloading apparatus, showing the fork in one position after being -loaded and in two other positions after being hoisted. Figs. 2 and 8 are detail views.

Referring more particularly to the drawings 1 designates the barn or the like having a horizontally arranged track adjacent the roof thereof. This track 2 extends from the window opening 8 at one end of the barn, to the rear end of the barn. The usual form of carrier is mounted upon the track and is provided with pulleys 6 and 6a. Secured at 7 is'a. rope or cable 8, which passes over the pulley 9 of the member 10, which in turn is pivoted at 11 to the hay fork 12, the detail structure of which forms the subject matter of the co-pending application tiled second day of August, 1912, Serial No. 712,920. This member 10 is provided with a projection 18 having an enlargement 111-. adapted to enter the opening 15 of the carrier so that the enlargement will engage the inclined surfaces 1G of the carrier, in order to assist in holding the fork elevated, as the same and its load of hay is being drawn or traveled through the barn. However, when the fork or grappling device is operated to release the hay, which relieves the fork of its excessive weight, the rope 19 is partially pull-ed or operated by the weight receptacle 20, to disengage the enlargement of the project-ion from the inclined surfaces 16, so as Specification of Letters Patent.

Patented Feb. 25, 1913.

Serial No. 711,845.

to dispose the enlargement in engagement with the inclined' surfaces 21 on the other side of the Opening 15, after which the weight receptacle will return the fork to the front end of the barn or its normal position. Vhen the fork is thus arranged a slight. pulling action is imparted to the rope 8 sufficiently to disengage the enlargement from the inclined surfaces 21, thereby allowing the fork to gravitate to the ground upon the outside. of the barn, where it may again be loaded. The rope 8 passes over the pulleys 22, 23 and 211, and draft animals (not shown) are adapted to be connected to its end. The rope 19 is connected at 7 to the rope 8, and the two ropes 8 and 19 are designed to be limited in their movements relative to the pulley 6a by the projections 25 and 7 on the ropes 8 and 19. The rope 19 passes over the pulley 26, and the pulley 27 of the weight receptacle, and is connected at 28 to the front end of the barn. The weight receptacle is adapted to receive additional weight, such as sand or lead lugs or the like, in order to increase its weight to correspond to the load on the fork.

From the foregoing it is to be observed there has been devised a simple and etticicnt. unloading apparatus and one which has been found desirable and practical.

Tn the drawings there is disclosed one form only of the invention, but in practical fields this form may necessitate alterations, to which the patentee is entitled provided the alterations are comprehended within the scope of what is claimed.

The invention having been set forth, what is claimed as new and useful is ln combination; a track; a carrier movable thereon having a tubular portion provided at each end with a pulley; a hoisting cable extending horizontally and engaging over the pulleys, said cable being arranged in a loop between the pulleys and provided with a weight to haul the carrier horizontally in one direction; said tubular portion having a horizontal opening, which terminates in a restricted portion at each end, located between the pulleys; a member having a pulley engaging in said loop, and provided with a suspended fork, said member having a neck terminating in an enlarged head beyond the second pulley, the head of which enters the opening, while the neck is adapted to engage or enter one or they other of said restricted portions7 to prevent the rier may be inoved in either direction on the 10 head leaving the openingftherehy detachtrack.

ably retaining the member on the carrier; In testimony whereof I have signed iny the Cable adapted to he manipulated to act naine to this specification in the presence of as means to effect a Connection and diseontwo lsulosgerihing Witnesses. nection of the inember to and from the car- HENRY L. DU XSTAD.

rier, said loop of the cable between the pulleys of the carrier having means for connecting the eahle to the carrier, so that the ear- Witnesses:

R01-In MEYER, ROBERT A. BOSWELL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

